What are the best design parameters and performance indexes of steam hot water boiler?

Boiler is a kind of energy conversion equipment. The energy input to the boiler exists in the form of chemical energy in fuel, electric energy and heat energy of high temperature flue gas. After the boiler is converted, steam, high-temperature water or organic heat carrier with certain heat energy is output. The original meaning of a pot refers to a container for holding water heated on a fire, and a furnace refers to a place where fuel burns. A boiler consists of two parts: a pot and a stove. The hot water or steam generated in the boiler can directly provide the heat energy needed by industrial production and people's life, and can also be converted into mechanical energy by steam power devices or converted into electrical energy by generators. Boilers that provide hot water are called hot water boilers, which are mainly used in life and have a small number of applications in industrial production. Boilers that generate steam are called steam boilers, usually referred to as boilers for short, and are mostly used in thermal power plants, ships, locomotives and industrial and mining enterprises.

Steam boiler refers to an industrial boiler that heats water to a certain parameter and produces high-temperature steam. Water is heated in the drum and turned into steam, and fire gives off heat in the furnace. This is the principle of steam boiler. Steam boilers are special equipment, and their design, processing, manufacture, installation and use must be supervised by technical supervision departments. Users must obtain the boiler use certificate before they can use the steam boiler. Steam boilers can be divided into electric steam boilers, oil-fired steam boilers and gas-fired steam boilers according to fuels (electricity, oil and gas). According to the structure, it can be divided into vertical steam boiler and horizontal steam boiler. Small and medium-sized steam boilers are mostly single and double-loop vertical structures, and large steam boilers are mostly three-loop horizontal structures. The vertical oil-fired gas-fired steam boiler adopts the double return structure with the burner under it, so the fuel burns fully and the boiler runs stably. The spoiler is inserted in the flue, which slows down the smoke exhaust speed, increases the heat exchange, improves the thermal efficiency of the boiler and reduces the user's use cost.